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Effect of the age of the C60/N-methyl-2-pyrrolidone solution on the structure of clusters in the C60/N-methyl-2-pyrrolidone/water system according to the small-angle neutron scattering data |
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| Authors: | V L Aksenov M V Avdeev E A Kyzyma L Rosta M V Korobov |
| Institution: | (1) Russian Research Centre “Kurchatov Institute”, pl. Akademika Kurchatova 1, Moscow, 123182, Russia;(2) Joint Institute for Nuclear Research, ul. Zholio-Kyuri 6, Dubna, Moscow oblast, 141980, Russia;(3) Shevchenko National University, Kiev, 03022, Ukraine;(4) Research Institute for Solid-State Physics and Optics, P.O. Boz 49, H-1525 Budapest, Hungary;(5) Moscow State University, Leninskie gory, Moscow, 119992, Russia |
| Abstract: | Fullerene clusters in the C60/N-methyl-2-pyrrolidone (NMP)/water system have been investigated by small-angle neutron scattering. It is shown that the scattering cross section corresponding to the size range 10–100 nm depends on the water content in the mixture. Addition of water to a C60/NMP solution in an amount exceeding 40% leads to a sharp increase in the average scattering cross section. This effect depends on the interval between the times of preparation of a C60/NMP solution and its dilution with water: the size of the clusters formed as a result of adding water increases with increasing the age of the initial solution. The reasons for this effect are discussed. |
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